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Evaluating Faces on Trustworthiness After Minimal Time Exposure

Todorov, Alexander, Pakrashi, Manish, Oosterhof, Nikolaas N.·2009·Social Cognition

Abstract

Previous studies have shown that trustworthiness judgments from facial appearance approximate general valence evaluation of faces (Oosterhof & Todorov, 2008) and are made after as little as 100 ms exposure to novel faces (Willis & Todorov, 2006). In Experiment 1, using better masking procedures and shorter exposures, we replicate the latter findings. In Experiment 2, we systematically manipulate the exposure to faces and show that a sigmoid function almost perfectly describes how judgments change as a function of time exposure. The agreement of these judgments with time-unconstrained judgments is above chance after 33 ms, improves with additional exposure, and does not improve with exposures longer than 167 ms. In Experiment 3, using a priming paradigm, we show that effects of face trustworthiness are detectable even when the faces are presented below the threshold of objective awareness as measured by a forced choice recognition test of the primes. The findings suggest that people automatically make valence/trustworthiness judgments from facial appearance.

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Metadata

Authors
Todorov, A., Pakrashi, M., & Oosterhof, N. N.
Venue
Social Cognition
Published
2009-12
Volume
27
Issue
6
Pages
813-833
ISSN
0278-016X (ISSN-L)
OpenAlex
W2039273945
Cited by
734
References
13
FWCI
7.31
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Evaluating Faces on Trustworthiness After Minimal Time Exposure. https://app.cochat.ai/papers/10.1521/soco.2009.27.6.813
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Todorov, A., Pakrashi, M., & Oosterhof, N. N. (2009). Evaluating Faces on Trustworthiness After Minimal Time Exposure. Social Cognition. https://doi.org/10.1521/soco.2009.27.6.813

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